.banner{
    position: relative;
    /* overflow: hidden; */
    width: 100%;
    height: 180px;
    background-color: #f7f8f9;
    margin-bottom: 57px;
}
.banner-c{
    position: absolute;
    top: 0;
    left: 50%;
    margin-left: -600px;
    width: 1200px;
    height: 180px;
    /* margin: 0 auto; */
    /* background-color: red; */
    text-align: center;
}
.banner-c h1 {
    margin-top: 63px;
    font-size: 32px;
    color: #181818;
}

.banner-c h2 {
    font-size: 14px;
    color: #c3c3c3;
}


.main{
    width: 1200px;
    margin: 0 auto;
}
.main ul{
    overflow: hidden;
}
.title{
    /* height: 36px; */
    overflow: hidden;
    width: 100px;
    /* vertical-align: middle; */
    margin-bottom: 32px;
}
.title span{
    float: right;
    display: block;
    font-size: 24px;
    color: #555555;
    line-height: 40px;
}
.main p{
    font-size: 15px;
    color: #555555;
}
.main li{
    float: left;
    width: 345px;
    margin-bottom: 73px;
    margin-right: 80px;
}
.main li:nth-child(3){
    margin-right: 0;
}

.map{
    width: 1200px;
    height: 383px;
    margin: 0 auto;
    background-color: #e1e1e1;
    margin-bottom: 90px;
}
@media screen and (max-width:768px){
    .banner{
        width: 100%;
    }
    .banner-c{
        top: 0;
        left: 0;
        margin-left: 0;
        width: 100%;
        text-align: center;
    }
    .main{
        width: 90%;
        margin: 0 auto;
    }
    .main li{
        float: none;
        width: 100%;
        margin-bottom: 20px;
        margin-right: 0;
        text-align: center;
    }
    .title{
        width: 100%;
        text-align: center;
    }
    .title span{
        float: none;
    }
}